Book-support.



A. P. DUNMAR.

BOOK SUPPORT.

APPLICATION FILED SEPT. 28. 1914.

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BooK-surBo-nn Be t. w st et I; A E Pi- U A i" c zen of: he Un ted. S te or s d g Golmnbus, in the county of Franklin and,

State of Ohio, have invented certain new and u eful Impr ements in B kr uppo tef. which the wine'ise $1QQQifie Qn-- y in e i n rela s,- to book r-suppQ t of the type .that mfay b readily transported and used conveniently in properly support;

ingan-fopen bookatithekproper angleof in clinationj -for; ease and comfort 1n1;reading.

Such fbObkS. as those ,ofi considerablfiyWeight and. also those of comparative newness are bothersome and; bunglesomeg to handle and it is. to' this end ,that, a-z-struot-ure is: contemplated by whic li the book ,m-ay ibe conven iently and eflFeotiuelysupported: g

One of the main obj jeots; of my invention resides" in; the; pro -isio'nof- ;a' structure whereby the book may be supported in Ian open position. and the exposed leaves on opposite sides of this open book be;firmly held in position against. possible turning. In this-'oonneetion; I have made my leaf engaging structure r-adjustable .-to igaocommodate arions thicknesses ofibooks and of su'ch-- eonstruo'tion that it may ,be ,;readily thrown-rout wot-engagement to facilitate turning.ofthe leaves I I :Other objects ofpmy' invention-will .bej-

' comerimore la'ppar'ent ;:afiter --afurther ildetailed deso'ription of --'the-- accompanying sheet not drawings, inwhioh similar- 1 charaoters:ofwreferenoe designate corresponding -parts,;andin.which: w 1 Figure l lSit side elevation of myqass'em bled-book support;

' Fig-27B a'view-inperspectiyeof holding structure,;.' -ip Fig- 3 is; a fragmentary-view. in perspective showing a detail of construction, *Fig l is a fragmentary top plan View showingthe means for; supporting one side of-the book,- a v o Fig.5 is a section taken on line 5- 5 of 6 is. a plan viewof the lower portion of the foot support.- V in the drawings, the, 'booksupporting table isshown 1', this: table being proleaf " d a p g lower edge r ithen alpsitzmd,-

' r son. {tha l nn a t lower eugepof this table vmvii li liiwinifa plurality of feet .sueh; as} sh'own at 3, the low'er vportionsi .being. ..rounded as at 4t for a half ofg the ,underside of" the table iS, "also, re e bly e tre lylw th. a 2 od 0 Lou s srnTE'Lr/rnn; OF-COLUM-BUSL e linr r Specification of Letter's Pate nt. Patented N0 191,7, pr is i nzfil September 28, lfl -qis ii 65497%;

tableiitsel f, may be inounted assume vaii-fous positions of inolinatiomlthe,rear footfi as e made. some zwtz re tef: in l n t thanithat shown] 3 gis I'al'so; pro iued w th t r lly .r iet ng, 2 d d 1 po tions 7. The upperend of 'this foot isproyi'de'd with hole throughlwhi'oh thorod 5 is ran d t pa etlieie ee I f fi iSh lQ nsvse ac d a d con t u dt at t y TfQ 'L 'n a friotional' grip upon the rodj -In;order thatuth e foot; owill not be I readily dislodged when the table structllfis movedfrom one position to another; or is; slightly ele ated,

I rheverm idd a ntens r 9 lie tth under portion; of the metal surrounding the Qle 8, h r Qi-ec n ein 1 oc d .th at a slight tilting aotion of the rod '6, will 7 Q cause it to oome into, 'engz tgeinent; with the rod-,5 tself. Because of the NELIIOLLSI olegrees-of inolination:thatfthe table may assume when it is properly setgl have rounded the variousifeet as; beendesoribed ;and shown at c and7.- f I this end 11 have provided a supporting struotu re' in the 1 form of a 'member having 41; -T-shdped hea d 10 and, a depending L shank.

portion "11,, slidable, through a suitable aperture 12,1111 the body of the table l.

Thi supporting element may bepositively held in any adjusted position bfyj'means of the thumb sorew, shown at 13. In order that this supportingmember will notinterrupt ,the plane n pper surfaceof the table when in its lowermost; position, I have notol ed out a smallportion thereof as" is shown at. 14, the supporting member itself beinglshown dottedin its lowermost position in igayfi, gEaoh side portion of the table 1 is usuallyprovided with an aperture such as that indicated at 12 and if desired, a separate supporting member may be provided for each aperture. If this is not desired, a single supporting member may be provided and this member used interchangeably between the several apertures.

When a comparatively large book is sup ported upon the table, the outside lowermost corners of the leaves tend to draw downwardly because the edges of the leaves themselves cannot engage the ledge 2 for the reason that it customary in binding books to makethe cover slightly larger than the leaves themselves. In order to prevent this sagging and, therefore, to save the binding, 1 have provided the lower edge of the table 1 with a number of members such as are shown at 15. Each of these members is pivoted, preferably adjacent the corner, to the table 1 by means of the attaching screw shown at 16. The free end of each of the members 15 is given an inward bend 17 and is then again bent at right angles as at 18, the distance the portion 17 overlaps the ledge 2 being approximately onefeighth inch or the amount that-the book cover usually overlies the leaf structure. If the device is intended to b'e'used with a small book, these lastdescribed members 15 may be swung about their pivotal connectionsto assume a lowered position as is illustrated in dotted lines in Fig. 3. j

The structure used for maintaining the exposed leaves of an open book in flat position is best shown in Fig. 2. This structure comprises a member 19 designed to be fixedly'secured to the upstanding ledge 2 of the table 1 by screws or bolts, this fitting being provided with an opening 20 of a size to slidably receive a standard 21. This standard 21 isalso provided with a lateral projection 22 terminating in a finger grip 23 arranged to cooperate, by means of a coiled spring 24:, with a similar. finger grip 25 rigidly carried by a toothed member such as is shown at 26. This toothed member is pivotally attached at 27 to the lateral projection 22 of the standard 21 and its teeth 28 are so arranged that they cooperate with similar teeth formedupon the projection 29 on the tting 19. The leaf engaging structure proper comprises a T-shaped engaging member 30 pivoted to the upper end of the standard 21 at 31. It will be noted, by reference to Figs. 1 and 2, that this pivot point is located a slight distance belowrthe upper end of the standard itself and in fact, is located a distance below this end sufiicient to accommodate the square end' portion of a locking finger 32 pivoted at 33 to the engaging member 30. This locking finger is preferably right angular in shape, its upstanding leg being formed to assume the proportions of a finger grip 3i.

The operation of this leaf engaging structure is as follows: It is assumed that a book is lying in open position upon the table 1, whereupon the finger grips 23 and 25 are forced toward each other against the pressure of the spring 24. Thisaction causes an outward movement of the toothed member 26 and when its tooth 28 comes out of engagement with the tooth on the projection 29, it is possible to move the standard 21 up or down to the desired position. The T-shaped leaf engager 30 is made to lie in engagement with the top of the open book and the standard 21 is then moved downward until this engager 30 assumes the right angular position as is shown in full lines in Fig. 1 and as is also shown in Fig. 2. Further movement downwardly of the standard 21 will, therefore,- be' impossible because upward movement of the member 30 is precluded by the engagement of the square end of the locking finger 32 with the upper. inside edge portion of the standard 21; Should it be desired to turn to the next page, the finger grip 3 1 on the locking finger is pressed'in the direction of the book, thereby releasing the engagement of the finger 32 with the upper end of the standard. This release then permits upward swinging of the member 30 about itspivot 31,v one upward position of both the member 30 and the locking finger being shown in dash lines in Fig. 1.

the leaf engager may again be locked in position by areversal of the operations just outlined.

What I claim, is:

1. A. book support comprising a member for supporting a book in open position, a member having an opening therethrough and toothed on one side carried by the lower edge of said table member, a standard slidable up and down in the opening in said toothed member, a complemental toothed member carried by said standard in coactive relation with said first named toothed member, means for holding said complemental toothed member in engagement with said first-named toothed member to hold said standard in any adjusted position, and means carried by the upper end of said standard to engage the book leaves of an open book to maintain them in position.

2. A book support comprising a table member for supporting a book in open position, a member having an opening therethrough and toothed on one side carried by the lower ed e of said table member, a

After the page has been turned,

W table holder pivoted to the upper end of said In testimony 'whereofI aflix my signaturestandard, and a square ended right angular in presence of two Witnesses.

lockin finger pivoted to said holder, the

square end portion being arranged to en- ABE DUNMAR' gage said standard to prevent upward move- Witnesses:

ment of said holder when in engaging po- LOUIS STETELMAN, e

sition. WALTER E. L. Boon.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. V 

